Examples with DataBufferByte java.awt.image.DataBufferByte used on opensource projects

Example 26 with DataBufferByte

use of java.awt.image.DataBufferByte in project commons-gdx by gemserk.

the class ScreenshotSaver method saveScreenshot.

public static void saveScreenshot(File file, byte[] pixels, int width, int height, boolean hasAlpha) throws IOException {
    DataBufferByte dataBuffer = new DataBufferByte(pixels, pixels.length);
    PixelInterleavedSampleModel sampleModel = new PixelInterleavedSampleModel(DataBuffer.TYPE_BYTE, width, height, 4, 4 * width, getOffsets(hasAlpha));
    WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuffer, new Point(0, 0));
    BufferedImage img = new BufferedImage(getColorModel(hasAlpha), raster, false, null);
    ImageIO.write(img, "png", file);
}

Example 27 with DataBufferByte

use of java.awt.image.DataBufferByte in project jmonkeyengine by jMonkeyEngine.

the class Screenshots method convertScreenShot.

/**
     * Flips the image along the Y axis and converts BGRA to ABGR
     * 
     * @param bgraBuf
     * @param out 
     */
public static void convertScreenShot(ByteBuffer bgraBuf, BufferedImage out) {
    WritableRaster wr = out.getRaster();
    DataBufferByte db = (DataBufferByte) wr.getDataBuffer();
    byte[] cpuArray = db.getData();
    // copy native memory to java memory
    bgraBuf.clear();
    bgraBuf.get(cpuArray);
    bgraBuf.clear();
    int width = wr.getWidth();
    int height = wr.getHeight();
    // flip the components the way AWT likes them
    // calcuate half of height such that all rows of the array are written to
    // e.g. for odd heights, write 1 more scanline
    int heightdiv2ceil = height % 2 == 1 ? (height / 2) + 1 : height / 2;
    for (int y = 0; y < heightdiv2ceil; y++) {
        for (int x = 0; x < width; x++) {
            int inPtr = (y * width + x) * 4;
            int outPtr = ((height - y - 1) * width + x) * 4;
            byte b1 = cpuArray[inPtr + 0];
            byte g1 = cpuArray[inPtr + 1];
            byte r1 = cpuArray[inPtr + 2];
            byte a1 = cpuArray[inPtr + 3];
            byte b2 = cpuArray[outPtr + 0];
            byte g2 = cpuArray[outPtr + 1];
            byte r2 = cpuArray[outPtr + 2];
            byte a2 = cpuArray[outPtr + 3];
            cpuArray[outPtr + 0] = a1;
            cpuArray[outPtr + 1] = b1;
            cpuArray[outPtr + 2] = g1;
            cpuArray[outPtr + 3] = r1;
            cpuArray[inPtr + 0] = a2;
            cpuArray[inPtr + 1] = b2;
            cpuArray[inPtr + 2] = g2;
            cpuArray[inPtr + 3] = r2;
        }
    }
}

Example 28 with DataBufferByte

use of java.awt.image.DataBufferByte in project playn by threerings.

the class JavaGLContext method updateTexture.

void updateTexture(int tex, BufferedImage image) {
    // Convert the image into a format for quick uploading
    image = convertImage(image);
    DataBuffer dbuf = image.getRaster().getDataBuffer();
    ByteBuffer bbuf;
    int format, type;
    if (image.getType() == BufferedImage.TYPE_INT_ARGB_PRE) {
        DataBufferInt ibuf = (DataBufferInt) dbuf;
        int iSize = ibuf.getSize() * 4;
        bbuf = checkGetImageBuffer(iSize);
        bbuf.asIntBuffer().put(ibuf.getData());
        bbuf.position(bbuf.position() + iSize);
        bbuf.flip();
        format = GL12.GL_BGRA;
        type = GL12.GL_UNSIGNED_INT_8_8_8_8_REV;
    } else if (image.getType() == BufferedImage.TYPE_4BYTE_ABGR) {
        DataBufferByte dbbuf = (DataBufferByte) dbuf;
        bbuf = checkGetImageBuffer(dbbuf.getSize());
        bbuf.put(dbbuf.getData());
        bbuf.flip();
        format = GL11.GL_RGBA;
        type = GL12.GL_UNSIGNED_INT_8_8_8_8;
    } else {
        // except we don't know how to deal with it
        throw new RuntimeException("Image type wasn't converted to usable: " + image.getType());
    }
    bindTexture(tex);
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, image.getWidth(), image.getHeight(), 0, format, type, bbuf);
    checkGLError("updateTexture");
}

Example 29 with DataBufferByte

use of java.awt.image.DataBufferByte in project nutz by nutzam.

the class Images method createJPEG4.

/**
     * Java's ImageIO can't process 4-component images and Java2D can't apply
     * AffineTransformOp either, so convert raster data to RGB. Technique due to
     * MArk Stephens. Free for any use.
     */
private static BufferedImage createJPEG4(Raster raster) {
    int w = raster.getWidth();
    int h = raster.getHeight();
    byte[] rgb = new byte[w * h * 3];
    float[] Y = raster.getSamples(0, 0, w, h, 0, (float[]) null);
    float[] Cb = raster.getSamples(0, 0, w, h, 1, (float[]) null);
    float[] Cr = raster.getSamples(0, 0, w, h, 2, (float[]) null);
    float[] K = raster.getSamples(0, 0, w, h, 3, (float[]) null);
    for (int i = 0, imax = Y.length, base = 0; i < imax; i++, base += 3) {
        float k = 220 - K[i], y = 255 - Y[i], cb = 255 - Cb[i], cr = 255 - Cr[i];
        double val = y + 1.402 * (cr - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
        val = y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base + 1] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
        val = y + 1.772 * (cb - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base + 2] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
    }
    raster = Raster.createInterleavedRaster(new DataBufferByte(rgb, rgb.length), w, h, w * 3, 3, new int[] { 0, 1, 2 }, null);
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    ColorModel cm = new ComponentColorModel(cs, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm, (WritableRaster) raster, true, null);
}

Example 30 with DataBufferByte

use of java.awt.image.DataBufferByte in project scriptographer by scriptographer.

the class Raster method drawImage.

public void drawImage(Image image, int x, int y) {
    BufferedImage buf;
    // a new one:
    if (image instanceof BufferedImage && getColorModel().isCompatibleSampleModel(((BufferedImage) image).getSampleModel())) {
        buf = (BufferedImage) image;
    } else {
        buf = createCompatibleImage(image.getWidth(null), image.getHeight(null));
        buf.createGraphics().drawImage(image, x, y, null);
    }
    WritableRaster raster = buf.getRaster();
    byte[] data = ((DataBufferByte) raster.getDataBuffer()).getData();
    nativeSetPixels(data, raster.getNumBands(), x, y, buf.getWidth(), buf.getHeight());
}